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A. Dittmann
Researcher at Dresden University of Technology
Publications - 5
Citations - 1066
A. Dittmann is an academic researcher from Dresden University of Technology. The author has contributed to research in topics: Set (abstract data type) & Consistency (knowledge bases). The author has an hindex of 3, co-authored 3 publications receiving 965 citations.
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Journal ArticleDOI
The IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam
Wolfgang Wagner,J. R. Cooper,A. Dittmann,J. Kijima,Hans-Joachim Kretzschmar,A. Kruse,Radim Mareš,K. Oguchi,H. Sato,I. Stöcker,O. Šifner,Y. Takaishi,I. Tanishita,J. Trübenbach,Th. Willkommen +14 more
TL;DR: The 1967 IFC Formulation for Industrial Use (IFC-67) has been formally recognized to calculate thermodynamic properties of water and steam for any official use such as performance guarantee calculations of power cycles as mentioned in this paper.
Journal ArticleDOI
Supplementary Backward Equations for Pressure as a Function of Enthalpy and Entropy p(h,s) to the Industrial Formulation IAPWS-IF97 for Water and Steam
Hans-Joachim Kretzschmar,J. R. Cooper,A. Dittmann,Daniel G. Friend,J. S. Gallagher,K Knobloch,Radim Mareš,K. Miyagawa,I. Stöcker,J. Trübenbach,Wolfgang Wagner,Th. Willkommen +11 more
TL;DR: In this article, the International Association for the Properties of Water and Steam (IAPWS) adopted backward equations for pressure as a function of enthalpy and entropy p(h,s) as a supplement to the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of water and Steam, in 2001.
Journal ArticleDOI
Supplementary Backward Equations T(p,h), v(p,h), and T(p,s), v(p,s) for the Critical and Supercritical Regions (Region 3) of the Industrial Formulation IAPWS-IF97 for Water and Steam
Hans-Joachim Kretzschmar,J. R. Cooper,A. Dittmann,Daniel G. Friend,J. S. Gallagher,Allan H. Harvey,K Knobloch,Radim Mareš,K. Miyagawa,N Okita,I. Stöcker,Wolfgang Wagner,Ingo Weber +12 more
TL;DR: In this article, the International Association for the Properties of Water and Steam (IAPWS) adopted backward equations for T(p,h), v (p, h), T( p, s), and v( p, s) in region 3, along with boundary equations for the saturation pressure as a function of enthalpy, P 3sat (h), and of entropy, p 3Sat (s).
Proceedings ArticleDOI
IMPROVED EQUATIONS FOR BACKWARD FUNCTIONS T=f(p,h), T=f(p,s), Ts=f(p) - A CONTRIBUTION TO THE IAPWS PROJECT "NEW INDUSTRIAL FORMULATION"
TL;DR: In this paper , the authors presented improved equation structures for g = f(T,p), T=f(p,h) and T = f (p,s) in the steam region, equation structure for T = p,h and T=p, s in the liquid region, and various equation pairs ps=f (T) and t s−sub> =f(T) on the saturation curve which are the subject of the current IAPWS project "New Industrial Formulation".
Proceedings ArticleDOI
An algorithm for setting up numerically consistent forward and backward equations for process modelling
TL;DR: In this paper , the authors proposed an algorithm to find numerically consistent equations with a minimized total number of terms automatically and with hardly any subjective influences, where only the corresponding banks of terms have to be established by the equation maker.